Restoration of submerged vegetation in shallow eutrophic lakes : a guideline and state of the art in Germany

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2006
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Hilt, Sabine
Hupfer, Michael
Morscheid, Harald
Mählmann, Jens
Melzer, Arnulf
Poltz, Jens
Sandrock, Stefan
Scharf, Eva-Maria
Schneider, Susanne
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Limnologica - Ecology and Management of Inland Waters. 2006, 36(3), pp. 155-171. ISSN 0075-9511. Available under: doi: 10.1016/j.limno.2006.06.001
Zusammenfassung

One of the most serious problems caused by eutrophication of shallow lakes is the disappearance of submerged macrophytes and the switch to a turbid, phytoplankton-dominated state. The reduction of external nutrient loads often does not result in a change back to the macrophyte-dominated state because stabilising mechanisms that cause resilience may delay a response. Additional internal lake restoration measures may therefore be needed to decrease the concentration of total phosphorus and increase water clarity. The re-establishment of submerged macrophytes required for a long-term stability of clear water conditions, however, may still fail, or mass developments of tallgrowing species may cause nuisance for recreational use. Both cases are often not taken into account when restoration measures are planned in Germany, and existing schemes to reduce eutrophication consider the topic inadequately. Here we develop a step-by-step guideline to assess the chances of submerged macrophyte re-establishment in shallow lakes. We reviewed and rated the existing literature and case studies with special regard on (1) the impact of different internal lake restoration methods on the development of submerged macrophytes, (2) methods for the assessment of natural re-establishment, (3) requirements and methods for artificial support of submerged macrophyte development and (4) management options of macrophyte species diversity and abundance in Germany. This guideline is intended to help lake managers aiming to restore shallow lakes in Germany to critically asses and predict the potential development of submerged vegetation, taking into account the complex factors and interrelations that determine their occurrence, abundance and diversity.

Zusammenfassung in einer weiteren Sprache
Fachgebiet (DDC)
570 Biowissenschaften, Biologie
Schlagwörter
Charophytes, Eutrophication, Invasive species, Lake management, Lake restoration, Macrophyte re-establishment, Nuisance species, Propagules
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ISO 690HILT, Sabine, Elisabeth GROSS, Michael HUPFER, Harald MORSCHEID, Jens MÄHLMANN, Arnulf MELZER, Jens POLTZ, Stefan SANDROCK, Eva-Maria SCHARF, Susanne SCHNEIDER, Klaus van der WEYER, 2006. Restoration of submerged vegetation in shallow eutrophic lakes : a guideline and state of the art in Germany. In: Limnologica - Ecology and Management of Inland Waters. 2006, 36(3), pp. 155-171. ISSN 0075-9511. Available under: doi: 10.1016/j.limno.2006.06.001
BibTex
@article{Hilt2006Resto-8549,
  year={2006},
  doi={10.1016/j.limno.2006.06.001},
  title={Restoration of submerged vegetation in shallow eutrophic lakes : a guideline and state of the art in Germany},
  number={3},
  volume={36},
  issn={0075-9511},
  journal={Limnologica - Ecology and Management of Inland Waters},
  pages={155--171},
  author={Hilt, Sabine and Gross, Elisabeth and Hupfer, Michael and Morscheid, Harald and Mählmann, Jens and Melzer, Arnulf and Poltz, Jens and Sandrock, Stefan and Scharf, Eva-Maria and Schneider, Susanne and Weyer, Klaus van der}
}
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